u2default()

u2default([<object>/]<attribute>, <default>[, <arg0>[, ... , <arg31>]])
u2ldefault([<object>/]<attribute>, <default>[, <arg0>[, ... , <arg31>]])

u2default() is udefault() with the attribute run as the calling object, as u2() runs it. When the attribute exists, it is evaluated with the <arg>s as %0 onward; when it does not, <default> is evaluated instead. Only the one that is used is evaluated.

u2ldefault() does the same, and also keeps the q-registers safe while it runs, as uldefault() does.

Examples:

> &JOIN #123=%0-%1
> think u2default(#123/JOIN, none, a, b)
a-b
> think u2default(#123/MISSING, none, a, b)
none

u2default() and u2ldefault() come from RhostMUSH and take the same arguments.

::: seealso

u2local()
UDEFAULT()
ULDEFAULT() :::